I set Timeout in seconds=240 and Amount of Retries=10 with no change. I get the same error messages every time I try to Resume a movie. I tried to start from the beginning of the movie and skip to a later part and that works. This behavior happens with direct play.

Ok I'll have to have a look at that but I believe this is consistent across all of my media. I package everything with the main video file and highest quality audio in an mkv. I prefer this since the audio is easily transcoded to a different format if needed for an iPhone but I still get the best audio on MrMC. I don't put an AAC track in because it caused problems with direct stream on Plex.

Let me test a few other files and see if I get similar or different behavior.

Alright I had some more time to test this out and I still haven't figured out the problem with resume. This is a consistent problem and I've had no success getting the movie to play from the middle.

Now for the good news...Using Looxoor's advice I looked around for a way to "fix" my file to fix seek. I came across mkclean and after running the file through that it has been a night and day difference. Load times are now under 5 seconds and seek time is nearly instant. The logs also show that MrMC is finding its seek point on Resum but for some reason it exits back to the main menu with no real explanation except for the an eof line.

That's on the hit list to figure out when we move into the next testflight. Only see this if the server has a really slow path to client. In my mind, a partial transfer should not be an error. Should just pass what it has and try again.

My home net connect is really slow, 58KB/s up so when I hit it from the outside world, it's very slow. That's my target test setup.

One thing I did notice with the mkv before using mkclean is that I would get the same partial file transfer errors even with the file locally stored on the server and not on the remote share. The difference is that it would then retry and continue to play. In fact I've had as many as four partial file transfers followed by retries in sequence before it eventually continued.

Let me know if you need some logs and I'll see if I can recreate what I saw or dig up some old logs.

Yes on the current version but I think I caused confusion with my description.

The Plex Media Server is always remote(running on VPS) but the difference in behavior results when Plex accesses the media locally or on a remote share(ACD in my case)

Behavior of Plex Media Server accessing locally stored file - I get the partial file error with the "un-mkclean" mkv but it will retry until it works. Additionally I don't believe I saw the error once I ran the file through mkclean.

Behavior of Plex Media Server accessing a remote share(ACD) - "in-mkclean" mkv has the partial file error and I believe seek is completely broken as there are other errors involved. Playing the mkclean file definitely cleaned up some of the issues but the partial file error does not show any retries. I might have seen an instance where I didn't see the partial file error in this scenario and playback still failed. I'll see if I can replicate that.